﻿<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>localStorage</title>
    </head>
    <body>
        <h2>往localStorage存储</h2>
        <button onclick="saveData()">点我保存一个数据</button>
        <hr />
        <h2>往localStorage读取</h2>
        <button onclick="readData()">点我读取一个数据</button>
        <hr />
        <h2>localStorage删除一个数据</h2>
        <button onclick="deleteData()">点我删除一个数据</button>
        <hr />
        <h2>清空localStorage</h2>
        <button onclick="clearData()">点我删除一个数据</button>
    </body>

    <script>
        let p = {
            name: '张三',
            age: 18,
        }
        console.log(p.toString())
        function saveData(){
            localStorage.setItem('msg','hello!!!')
            localStorage.setItem('h',666)
            localStorage.setItem('person',JSON.stringify(p))
        }
        function readData(){
            console.log(localStorage.getItem('msg')) 
            const result = localStorage.getItem('person3')
            console.log(JSON.parse(result))
            console.log(localStorage.getItem('msg3')) 
        }
        function deleteData(){
            localStorage.removeItem('person')
        }
        function clearData(){
            localStorage.clear()
        }
    </script>
</html>